browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);

if (browserName == "Microsoft Internet Explorer" && browserVer == 4) version ="n3";
else
    if (browserName == "Netscape" && browserVer >= 3) version ="n3";
    else version ="n2";

if (version == "n3") 
{
					     
    var base = "images/common/"
		
    bar1on = new Image(1, 1);
    bar1on.src = base+"t1-lt.gif";
    bar1off = new Image(1, 1);
    bar1off.src = base+"t1.gif";
		
    bar2on = new Image(1, 1);
    bar2on.src = base+"t2-lt.gif";
    bar2off = new Image(1, 1);
    bar2off.src = base+"t2.gif";
		
    bar3on = new Image(1, 1);
    bar3on.src = base+"t3-lt.gif";
    bar3off = new Image(1, 1);
    bar3off.src = base+"t3.gif";
		
    bar4on = new Image(1, 1);
    bar4on.src = base+"t4-lt.gif";
    bar4off = new Image(1, 1);
    bar4off.src = base+"t4.gif";
		
    bar5on = new Image(1, 1);
    bar5on.src = base+"t5-lt.gif";
    bar5off = new Image(1, 1);
    bar5off.src = base+"t5.gif";
		
    bar6on = new Image(1, 1);
    bar6on.src = base+"t6-lt.gif";
    bar6off = new Image(1, 1);
    bar6off.src = base+"t6.gif";
	
	bar7on = new Image(1, 1);
    bar7on.src = base+"t7-lt.gif";
    bar7off = new Image(1, 1);
    bar7off.src = base+"t7.gif";
}
		
function img_act(imgName) 
{
    if (version == "n3")  
    {
        imgOn = eval(imgName + "on.src" );
        document [imgName].src = imgOn;
    }
}

function img_inact(imgName) 
{
    if (version == "n3")  
    {
        imgOff = eval(imgName + "off.src" );
        document [imgName].src = imgOff;
    }
}